#define _CRT_SECURE_NO_WARNINGS  1

#include <stdio.h>

int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d", &a, &b);
	a = b + a;
	b = a - b;
	a = a - b;
	printf("%d %d", a, b);
	return 0;
}